The rhetoric in the letter against the evil West is expected from bin Laden. What I think is scary is the verses which he used to back up his point. It may be that he is just trying to justify his rhetoric to the more passive Muslims through scripture references from the Koran.
With the recent capture of Abd al-Rahim al-Nashiri, Al Qaeda's Persian Gulf operations chief, it has been reported that we are getting a lot of information out of this guy:
http://www.foxnews.com/story/0,2933,71116,00.html
In view of this, it is worrisome that this may be coded messages to activate cells before they can be compromised.
The timing of the release a few weeks before Thanksgiving and the reference to Ben Franklin are the scary parts. As I recall, Ben Franklin wanted the national bird to be the Turkey and not the Bald Eagle.
I hope that this is merely my overactive imagination thinking of conspiracy theories.
The English version of his text message can be found at:
http://www.observer.co.uk/worldview/story/0,11581,845725,00.html
There is no compromise with these people. The only peace that will be achieved is by destroying Al Qaeda and its network.